Monday, October23, 2017 L-36.com


Marine Weather and Tides
Long Beach, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:45AMSunset 6:13PM Monday October 23, 2017 5:12 PM PDT (00:12 UTC) Moonrise 10:25AMMoonset 7:59PM Illumination 15% Phase: Waxing Crescent; Moon at 4 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ210 Columbia River Bar- 257 Pm Pdt Mon Oct 23 2017
.small craft advisory for rough columbia river bar in effect until 11 pm pdt this evening...
.small craft advisory for rough columbia river bar in effect Tuesday morning...
In the main channel..Combined seas around 10 ft through this evening, dropping to 7 to 8 ft overnight. However, seas will temporarily build to 11-13 ft with breakers possible during the ebb around 745 pm this evening, and to around 10 ft during the ebb around 815 am Tuesday morning.
PZZ200 257 Pm Pdt Mon Oct 23 2017
Synopsis for southern washington and northern oregon coast.. Surface high pressure building over the waters will remain through most of the upcoming week. Meanwhile, a thermally induced surface trough will remain over the northern california and southern oregon coast, keeping persistent northerly winds over the coastal waters. A weak front will move through the waters Wednesday.

7 Day Forecast for Marine Location Near Long Beach, WA
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location: 46.37, -124.05     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 232159
afdpqr
area forecast discussion
national weather service portland or
1221 pm pdt Mon oct 23 2017

Synopsis Strong high pressure will sit over the pac NW this week,
with dry and mild conditions. Will see areas of late night am fog and
low clouds, mainly for interior valleys. Some threat of showers wed
as weak front moves across the region. Then back to mild and dry,
with breezy offshore winds for Thu into next weekend.

Short term Tonight through Wednesday... Building high pressure
ridge over the region will maintain dry and mild conditions for a
while. Surface high pressure east of the cascades will dominate
weather for next few days, with increasing offshore flow tonight.

Should see lot less in way of low clouds and fog tonight. Most likely
areas will be in willamette valley south of salem, and in the cowlitz
valley. With increasing offshore winds, will see drier air increasing
on the west side. This will work to erode fog low clouds later
tonight into Tue am.

Speaking of which, these east winds will becoming gusty over the
higher terrain and through the columbia river gorge later tonight as
the offshore pressure gradient strengthens. Gusts of 30 to 45 mph
expected for the higher terrain of the willapa hills, coast range and
the cascades later tonight through good part of tue. The east winds
will gust 25 to 40 mph across the east side of portland vancouver
metro, with gusts up to 50 mph in the western columbia river gorge.

With 850 mb temps climbing into the upper teens celsius, the coast
range and lower to midslopes of the cascades should easily reach the
70s, and perhaps approach 80 degrees Tue afternoon. With 500 mb
heights exceeding 590 dm, there will be inversions which will likely
keep valleys a bit cooler, but still in the the mid to upper 60s.

The upper ridge flattens Tue night, with a weak system drops
across the pac NW Wed and Wed night. Will see light onshore flow at
that time, with some threat of showers. Best threat of showers will
over the cascades north of santiam pass. Even so, rainfall amounts
will be spotty and light. rockey.

Long term Wednesday night through Sunday... High pressure will
rebuild over the pac NW Thu and fri, and hold in place into next
week. This will maintain mild and dry conditions, as well as varying
degrees of offshore flow. Expect breezy east winds for Thu night
through early sat, especially over the higher terrain and in western
columbia river gorge. In fact, if current trend pans out, this would
be a dry and mild halloween, the first since 2007. rockey.

Aviation Ifr fog and low clouds over the lowlands this
morning have mostly cleared at this point. The exception is a small
patch of stratus in the southern willamette valley, which should
also burn off within the next hour. Then widespreadVFR conditions
will remain in control through this evening. Strengthening offshore
flow overnight should keep the coast and the northern portions of
the interior lowlands cloud free tonight and Tue morning. The
southern half of the willamette valley is more uncertain. Keug and
possibly ksle could see a period of fog overnight into Tue morning.

However, NE flow may develop through the valley, which would prevent
much fog from forming in these locations either.

Kpdx and approaches...VFR conditions expected to remain through the
next 24 hrs. Easterly flow will develop overnight and remain through
tue, which should keep any low clouds or fog from forming overnight.

Gust east winds out towards the gorge will affect easterly
approaches tonight and much of tue. Pyle

Marine High pressure building over the NE pac will remain in
place through most of the next 7 days. Meanwhile, a thermally
induced surface low will remain over the northern ca and southern or
coast. This pattern will result in persist n-ne winds. The winds
will be gusty at times. Based on the latest model guidance, decided
to issue a small craft advisory for winds for the outer waters from
this evening through Tue night. Expect gusts of 20-25 kt during this
time. Winds will be lighter over the inner waters. A weak front will
move through the waters wed, which will briefly weaken the NE pac
high and turn winds weak westerly. Gustier northerly winds will
return for later in the week.

Seas remain 10 to 11 ft this afternoon, so have kept the small craft
advisory for seas through this evening. Seas will drop below 10 ft
later this evening, then continue to fall over the next couple of
days. They will be around 6 ft by Wednesday, and stay in the 5 to 7
ft through Friday. Pyle

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds from 8 pm this evening to 5 am
pdt Wednesday for waters from CAPE shoalwater wa to
cascade head or from 10 to 60 nm-waters from cascade head
to florence or from 10 to 60 nm.

Small craft advisory for hazardous seas until 11 pm pdt this
evening for coastal waters from CAPE shoalwater wa to
cascade head or out 10 nm-coastal waters from cascade head
to florence or out 10 nm-waters from CAPE shoalwater wa to
cascade head or from 10 to 60 nm-waters from cascade head
to florence or from 10 to 60 nm.

Small craft advisory for rough columbia river bar until 11 pm
pdt this evening.

Small craft advisory for rough columbia river bar from 6 am to
10 am pdt Tuesday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46243 - Clatsop Spit, OR - 162 11 mi43 min 55°F9 ft
46096 14 mi103 min NNE 3.9 G 5.8 54°F 55°F1035.4 hPa
ASTO3 - 9439040 - Astoria, OR 19 mi43 min N 4.1 G 7 64°F 57°F1035 hPa
TOKW1 - 9440910 - Toke Point, WA 24 mi43 min Calm G 0 70°F 54°F1035.5 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 28 mi83 min NE 3.9 G 7.8 56°F 55°F11 ft1035.4 hPa (+0.0)53°F
46T29 32 mi33 min ENE 3.9 G 7.8 57°F 56°F1035.9 hPa54°F
46248 - Astoria Canyon, OR (179) 35 mi48 min 56°F11 ft
46211 - Grays Harbor, WA (036) 35 mi43 min 55°F9 ft
WPTW1 - 9441102 - Westport, WA 37 mi43 min E 8.9 G 11 63°F 54°F1035.4 hPa

Wind History for Astoria, OR
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR17 mi78 minN 510.00 miFair64°F52°F65%1034.9 hPa

Wind History from AST (wind in knots)
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Last 24hrSW4S4SE4E3CalmSE3CalmCalmCalmCalmE3CalmE3E3SE5CalmE3E5NE5NE6E5E6N5N6
1 day agoSW24
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W11SW6SW15
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2 days agoS4S4S9SE6SE5SE3S6SE4E6SE8SE9E11E6S14
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S94SW9
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G37

Tide / Current Tables for Tarlatt Slough, Willapa Bay, Washington
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Tarlatt Slough
Click for Map
Mon -- 04:55 AM PDT     7.95 feet High Tide
Mon -- 07:45 AM PDT     Sunrise
Mon -- 11:03 AM PDT     2.70 feet Low Tide
Mon -- 11:25 AM PDT     Moonrise
Mon -- 04:18 PM PDT     8.81 feet High Tide
Mon -- 06:14 PM PDT     Sunset
Mon -- 08:59 PM PDT     Moonset
Mon -- 11:41 PM PDT     0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.62.44.36.17.587.56.55.34.13.22.73.45.26.98.18.88.67.86.34.62.91.40.3

Tide / Current Tables for Fort Canby, Jetty A, Columbia River, Washington
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Fort Canby
Click for Map
Mon -- 03:54 AM PDT     6.99 feet High Tide
Mon -- 07:44 AM PDT     Sunrise
Mon -- 09:01 AM PDT     2.90 feet Low Tide
Mon -- 11:24 AM PDT     Moonrise
Mon -- 03:10 PM PDT     8.01 feet High Tide
Mon -- 06:15 PM PDT     Sunset
Mon -- 09:00 PM PDT     Moonset
Mon -- 09:45 PM PDT     -0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.54.25.76.776.55.44.23.32.93.24.15.46.77.687.76.44.62.61.10.1-0.10.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (20,4,5,8)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.